I need help writing an essay about is it possible to tell the same story every time

It's to know your purpose before you read something because a purpose can:

What is the primary purpose of this blog? to inform people about the new sports park to entertain people with details about the warbler to persuade people to protect the warbler to convince people to support the city council

Read this excerpt from "a visit from the goon squad."that’s when he began singing the songs he’d been writing for years underground, songs no one had ever heard, or anything like them—“eyes in my head,” “x’s and o’s,” “who’s watching hardest”—ballads of paranoia and disconnection ripped from the chest of a man you knew just by looking had never had a page or a profile or a handle or a handset, who was part of no one’s data, a guy who had lived in the cracks all these years, forgotten and full of rage, in a way that now registered as pure. untouched. how does the author use satire in this excerpt? the author is criticizing media censorship. the author is criticizing the idea of isolationism. the author is mocking society’s overuse of technology. the author is mocking man’s inability to freely express himself.